The division of geologic time that makes up about 88 percent of Earth's history is called the Precambrian eon. It spans from the formation of Earth around 4.6 billion years ago to the beginning of the Phanerozoic eon around 541 million years ago.
fossil record geologic time scale
The Earth's history is divided into geologic time periods, with the largest unit being eons, which are further divided into eras, periods, epochs, and ages. The current eon we are in is the Phanerozoic eon, divided into the Paleozoic, Mesozoic, and Cenozoic eras. Each division represents significant changes in Earth's geological and biological history.
geologic time scale
The unfulness of categorizing Earth's history into the geologic time scale lies in its inherent simplification of complex and dynamic processes. This framework can obscure the continuous and often overlapping nature of geological events, as well as the influence of external factors like climate change and biological evolution. Additionally, the arbitrary divisions may not accurately reflect the rates or effects of significant changes, leading to a skewed understanding of Earth's history. Ultimately, while useful for organization, the geologic time scale can limit our appreciation of the intricate and interwoven narratives that shape our planet's past.
30%
The Precambrian time
epoch
fossil record geologic time scale
fossil record geologic time scale
fossil record geologic time scale
fossil record geologic time scale
The Earth's history is divided into geologic time periods, with the largest unit being eons, which are further divided into eras, periods, epochs, and ages. The current eon we are in is the Phanerozoic eon, divided into the Paleozoic, Mesozoic, and Cenozoic eras. Each division represents significant changes in Earth's geological and biological history.
The Precambrian Time
uniformitarianism
geologic time scale
First organisms formed, pangaea came together, homo sapiens lived. There are lots of good images on google.
4.6 billion years